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Lecture 11

Lecture 11. Spreading. Spreading…. Shade sequence / Shade Card Correct ply direction Alignment of plies Correct Ply tension Fabric faults Static Charges Distortion of spread Fusion of plies. 2- Ply direction…. Symmetric fabric The fabrics which are same on both the sides

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Lecture 11

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  1. Lecture 11 Spreading

  2. Spreading… • Shade sequence / Shade Card • Correct ply direction • Alignment of plies • Correct Ply tension • Fabric faults • Static Charges • Distortion of spread • Fusion of plies

  3. 2- Ply direction… • Symmetric fabric • The fabrics which are same on both the sides • Asymmetric fabric • Different face and back sides • Directional fabrics • Fabrics are same from end to end • Non-directional fabrics • Fabrics are different from end to end

  4. Spreading Types • Face-up and Nape one way • Face-up and Nape either way • Face to face and Nape one way • Face to face and Nape either way

  5. 3- Alignment of plies • The plies should properly be aligned both length and width wise • Stripers / check fabrics are the biggest challenge • Spikes may be used

  6. 4- Correct ply tension • Tension during spreading should be correct. • Less tension means irregular fullness • More tension means tightness which finally result in contracted fabric pieces in sewing

  7. 5- Fabric Faults • Fabric faults should be eliminated during spreading • Splice Mark • Pair backing

  8. 6- Static Charges • In synthetic materials, Static charges may develop due to the friction of fabric to the machine parts • Change the way of fabric through machine • Increase humidity • Earth the lay

  9. 7- Distortion of spread • During manual cutting, the spread may be distorted due to the base plate of the cutter • Glazed paper is used to avoid it

  10. 8- Fusion of plies • Edges of fabrics (thermoplastic) may be fused together during cutting due to the heated blade of cutter • Anti-fusion paper may be used to avoid fusion

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